/
INRReader.java
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/
INRReader.java
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/*
* #%L
* OME Bio-Formats package for reading and converting biological file formats.
* %%
* Copyright (C) 2005 - 2016 Open Microscopy Environment:
* - Board of Regents of the University of Wisconsin-Madison
* - Glencoe Software, Inc.
* - University of Dundee
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-2.0.html>.
* #L%
*/
package loci.formats.in;
import java.io.IOException;
import loci.common.RandomAccessInputStream;
import loci.formats.CoreMetadata;
import loci.formats.FormatException;
import loci.formats.FormatReader;
import loci.formats.FormatTools;
import loci.formats.MetadataTools;
import loci.formats.meta.MetadataStore;
import ome.xml.model.primitives.PositiveFloat;
import ome.units.quantity.Length;
/**
* INRReader is the file format reader for INR files.
*/
public class INRReader extends FormatReader {
// -- Constants --
private static final String INR_MAGIC = "#INRIMAGE";
private static final int HEADER_SIZE = 256;
// -- Constructor --
/** Constructs a new INR reader. */
public INRReader() {
super("INR", "inr");
domains = new String[] {FormatTools.UNKNOWN_DOMAIN};
}
// -- IFormatReader API methods --
/* @see loci.formats.IFormatReader#isThisType(RandomAccessInputStream) */
@Override
public boolean isThisType(RandomAccessInputStream stream) throws IOException {
final int blockLen = INR_MAGIC.length();
if (!FormatTools.validStream(stream, blockLen, false)) return false;
return (stream.readString(blockLen)).indexOf(INR_MAGIC) == 0;
}
/**
* @see loci.formats.IFormatReader#openBytes(int, byte[], int, int, int, int)
*/
@Override
public byte[] openBytes(int no, byte[] buf, int x, int y, int w, int h)
throws FormatException, IOException
{
FormatTools.checkPlaneParameters(this, no, buf.length, x, y, w, h);
long planeSize = (long) FormatTools.getPlaneSize(this);
in.seek(HEADER_SIZE + no * planeSize);
readPlane(in, x, y, w, h, buf);
return buf;
}
// -- Internal FormatReader API methods --
/* @see loci.formats.FormatReader#initFile(String) */
@Override
protected void initFile(String id) throws FormatException, IOException {
super.initFile(id);
in = new RandomAccessInputStream(id);
// read the fixed-size header
LOGGER.info("Reading header");
String header = in.readString(HEADER_SIZE);
String[] lines = header.split("\n");
Double physicalSizeX = null;
Double physicalSizeY = null;
Double physicalSizeZ = null;
boolean isSigned = false;
int nBits = 0;
CoreMetadata m = core.get(0);
for (String line : lines) {
int index = line.indexOf("=");
if (index >= 0) {
String key = line.substring(0, index);
String value = line.substring(index + 1);
addGlobalMeta(key, value);
if (key.equals("XDIM")) {
m.sizeX = Integer.parseInt(value);
}
else if (key.equals("YDIM")) {
m.sizeY = Integer.parseInt(value);
}
else if (key.equals("ZDIM")) {
m.sizeZ = Integer.parseInt(value);
}
else if (key.equals("VDIM")) {
m.sizeT = Integer.parseInt(value);
}
else if (key.equals("TYPE")) {
isSigned = value.toLowerCase().startsWith("signed");
}
else if (key.equals("PIXSIZE")) {
String bits = value.substring(0, value.indexOf(" "));
nBits = Integer.parseInt(bits);
}
else if (key.equals("VX")) {
physicalSizeX = new Double(value);
}
else if (key.equals("VY")) {
physicalSizeY = new Double(value);
}
else if (key.equals("VZ")) {
physicalSizeZ = new Double(value);
}
}
}
// finish populating core metadata
LOGGER.info("Populating metadata");
if (getSizeZ() == 0) {
m.sizeZ = 1;
}
if (getSizeT() == 0) {
m.sizeT = 1;
}
m.sizeC = 1;
m.imageCount = getSizeZ() * getSizeT() * getSizeC();
m.pixelType =
FormatTools.pixelTypeFromBytes(nBits / 8, isSigned, false);
m.dimensionOrder = "XYZTC";
// populate the metadata store
LOGGER.info("Populating OME metadata");
MetadataStore store = makeFilterMetadata();
MetadataTools.populatePixels(store, this);
if (getMetadataOptions().getMetadataLevel() != MetadataLevel.MINIMUM) {
Length sizeX = FormatTools.getPhysicalSizeX(physicalSizeX);
Length sizeY = FormatTools.getPhysicalSizeY(physicalSizeY);
Length sizeZ = FormatTools.getPhysicalSizeZ(physicalSizeZ);
if (sizeX != null) {
store.setPixelsPhysicalSizeX(sizeX, 0);
}
if (sizeY != null) {
store.setPixelsPhysicalSizeY(sizeY, 0);
}
if (sizeZ != null) {
store.setPixelsPhysicalSizeZ(sizeZ, 0);
}
}
}
}